> No. 1.] E. P. Stebbing—On the Bostrichidas of the Indian Region. 2ty 



15-16— Pronotum legerment excave audessus du milieu de son 

 bord anterieur. Artrcles de la massue antennaire sans, 

 taches pileuses nettement delimiters . . 



G. Heterohostrichus. 

 16-15— Pronotum nullement excave en avant. 

 17-18 — Front ou deprime en arriere, ou saillant au bord anterieur 

 par rapport a l'epistome. Taille moyenne : 6-21 millim. 



G. Bostrichopsis^ 

 The habits of the above genera would appear to be somewhat 

 similar, but little is known upon the subject at present. Bamboos 

 and the wood of the sal {Shorea robusta), cotton tree {Bombax 

 malabartcum), and Guava {Psidium Guava) have been reported as. 

 infested by species of these genera. 



Genus Lichenophanes, Lesne. 

 Lesne, An. Soc. Ent. Fr., 1898, p. 4.57. 



Forehead simple, generally not gibbous, flat or very slightly- 

 depressed transversely at the level of the posterior edge of the 

 eyes, sometimes gibbous in comparison with the epistome and 

 sloping in front. Frontal clypeal suture straight or slightly arched,, 

 more or less well marked. Epistome truncate or hardly indented in 

 front, its anterior angles obtuse or rounded. The buccal border 

 without a tooth or prominent lobe beneath the eyes. Posterior- 

 edge of the eyes turned up, the temples forming beneath a re-enter-> 

 ing angle more or less well defined. The joints of the antennal club 

 each ornamented on either face with two or more well-defined 

 velvety circular patches which are often golden coloured. Posterior 

 angles of the prothorax well marked having the form of lobes or of 

 more or less pointed tubercles. Sculpture of the posterior surface 

 of the pronotum mixed with prominent granules and never having 

 the appearance of imbricated scales. Elytra lobed or tuberculate on 

 the basal portion on either side of the scutellum, their innermost 

 dorsal nervure swollen and prominent at least near the base. Fifth 

 visible segment of the abdomen simple, rounded behind, and furnished 

 laterally with a marginal channel. Posterior tibiae without long hairs 

 on their external faces. Anterior tarsi shorter than the correspond-- 

 ing tibiae. 



This genus contains a large number of species which are remark- 

 able for their varied colouring, the colouration often closely imitating 

 the colour of bark or of tree lichens amongst which these insects pass, 

 the greater part of their lives. It is probable that many unknown: 

 species exist in the Indian Region. 



